EP 3868653 B1 20230531 - ROTARY ACTUATOR
Title (en)
ROTARY ACTUATOR
Title (de)
ROTATIONSAKTUATOR
Title (fr)
ACTIONNEUR ROTATIF
Publication
Application
Priority
US 202016799759 A 20200224
Abstract (en)
[origin: EP3868653A1] A rotary actuator (32), including a manifold block (34) and a rotor assembly (36) that includes a rotor shaft (46) and a plurality of arcuate pistons (60) attached to the rotor shaft, each arcuate piston curving at a set radial distance from the rotor shaft, and each piston attached to the rotor shaft via a crank arm (58). A pressure chamber assembly (64) coupled to the manifold block defines a plurality of piston pressure chambers (66) that receive and at least partially enclose each arcuate piston, including a plurality of gland seals (72) disposed adjacent the entrance of each piston pressure chamber to create a seal between the inner surface (70) of the pressure chamber and the outer surface (68) of the arcuate piston. Each gland seal includes an inner seal (88) that engages the piston surface of the arcuate piston, and plural outer seals (901) that engage the inner surface of the piston pressure chamber, forming a hydraulic seal.
IPC 8 full level
B64C 13/36 (2006.01); B64C 13/50 (2006.01); F15B 15/12 (2006.01)
CPC (source: CN EP US)
B64C 13/32 (2013.01 - US); B64C 13/36 (2013.01 - EP); B64C 13/40 (2013.01 - US); F01C 9/002 (2013.01 - US); F15B 15/125 (2013.01 - EP US); F16H 37/124 (2013.01 - CN); F16H 47/02 (2013.01 - CN); F16H 47/06 (2013.01 - CN); F16H 47/07 (2013.01 - CN); B64C 13/30 (2013.01 - US); B64C 13/504 (2017.12 - EP); B64C 13/505 (2017.12 - EP); B64C 2009/005 (2013.01 - US); F16H 2047/025 (2013.01 - CN)
Citation (examination)
US 2021317849 A1 20211014 - MAWLE CRAIG D [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3868653 A1 20210825; EP 3868653 B1 20230531; CA 3107262 A1 20210824; CN 113294504 A 20210824; JP 2021167665 A 20211021; US 11434940 B2 20220906; US 2021262495 A1 20210826
DOCDB simple family (application)
EP 21158938 A 20210224; CA 3107262 A 20210126; CN 202110190892 A 20210220; JP 2021026314 A 20210222; US 202016799759 A 20200224